Our Lord finished His work, but we have not finished ours. He pointed the way we must follow. He laid down the Cross at the finish, but we must take it up. He finished Redemption in His physical Body, but we have not finished it in His Mystical Body. He has finished salvation, we have not yet applied it to our souls. He has finished the Temple, but we must live in it. He has finished the model Cross, we must fashion ours to its pattern. He has finished sowing the seed, we must reap the harvest. He has finished filling the chalice, but we have not finished drinking its refreshing draughts. He has planted the wheat field; we must gather it into our barns. He has finished the Sacrifice of Calvary; we must finish the Mass.
The Crucifixion was not meant to be an inspirational drama, but a pattern act on which to model our lives. We are not meant to sit and watch the Cross as something done and ended like the life of Socrates. What was done on Calvary avails for us only in the degree that we repeat it in our own lives.
-From "Calvary and the Mass"
Excerpt from "Praying In The Presence Of Our Lord with Fulton J. Sheen" by Michael Dubruiel, Our Sunday Visitor, Inc., 2002.